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SubjectRe: linux-next: Tree for Mar 14 (mips qemu failure bisected)
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Hi Guenter,

On 15/03/2016 05:26, Guenter Roeck wrote:
> On Mon, Mar 14, 2016 at 07:37:29AM -0700, Guenter Roeck wrote:
>> On Mon, Mar 14, 2016 at 05:40:37PM +1100, Stephen Rothwell wrote:
>>> Hi all,
>>>
>>> Changes since 20160311:
>>>
>>> The vfs tree gained a conflict against Linus' tree. I also applied a
>>> patch for a known runtime bug.
>>>
>>> The tip tree gained a conflict against the mips tree.
>>>
>>> The aio tree still had a build failure so I removed several commits
>>> from it. It also gained a conflict against the vfs tree.
>>>
>>> Non-merge commits (relative to Linus' tree): 11202
>>> 8646 files changed, 426680 insertions(+), 211740 deletions(-)
>>>
>> To give people an idea what to expect in the merge window, here are my current
>> build and runtime test results. Some of the runtime failures are due to the
>> newly introduced i2c bug, but many (including the arm64 boot failures) have
>> been around for a while.
>>
> [ ... ]
>
>> Qemu test results:
>> total: 96 pass: 69 fail: 27
>> Failed tests:
> [ ... ]
>> mips:mips_malta_smp_defconfig
> I bisected this failure to commit bb11cff327e54 ("MIPS: Make smp CMP, CPS and MT
> use the new generic IPI functions". Bisect log is attached.

Thanks for bisecting this. I tested this on a real Malta system but not
qemu. I'll try to reproduce.

Can I get qemu run script and the instructions to use it from somewhere?

Thanks,
Qais

>
>> mips64:smp:mips_malta64_defconfig
>> mips:mipsel_malta_smp_defconfig
>> mips:mipsel_malta64_smp_defconfig
> If necessary I can repeat the bisect for those. Please let me know.
>
> Thanks,
> Guenter
>
> ---
> Bisect log:
>
> # bad: [4342eec3c5a2402ca5de3d6e56f541fe1c5171e2] Add linux-next specific files for 20160314
> # good: [f6cede5b49e822ebc41a099fe41ab4989f64e2cb] Linux 4.5-rc7
> git bisect start 'HEAD' 'v4.5-rc7'
> # good: [0525c3e26ec2c43cd509433be3be25210a0154ef] Merge remote-tracking branch 'drm-tegra/drm/tegra/for-next'
> git bisect good 0525c3e26ec2c43cd509433be3be25210a0154ef
> # bad: [385128a1b49762c1b9515c9f6294aeebbc55b956] Merge remote-tracking branch 'usb-chipidea-next/ci-for-usb-next'
> git bisect bad 385128a1b49762c1b9515c9f6294aeebbc55b956
> # good: [dfdb27baab4fc45c9399a991270413d0fb1c694a] Merge remote-tracking branch 'spi/for-next'
> git bisect good dfdb27baab4fc45c9399a991270413d0fb1c694a
> # bad: [e368d7d2a0dce6d6795ead1fc8a09bcca8a4a565] Merge branch 'timers/nohz'
> git bisect bad e368d7d2a0dce6d6795ead1fc8a09bcca8a4a565
> # good: [ced30bc9129777d715057d06fc8dbdfd3b81e94d] Merge tag 'perf-core-for-mingo-20160310' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
> git bisect good ced30bc9129777d715057d06fc8dbdfd3b81e94d
> # bad: [656a61d4d9cbb8dfc2d007281190b2eccebad522] manual merge of mm/pkeys
> git bisect bad 656a61d4d9cbb8dfc2d007281190b2eccebad522
> # good: [16f7379f2da43f29d9faa2f474745e2705a3f510] Merge branch 'efi/core'
> git bisect good 16f7379f2da43f29d9faa2f474745e2705a3f510
> # bad: [a7fb9a8169be9a55e0cfb98346aece1b51c016fa] Merge branch 'locking/core'
> git bisect bad a7fb9a8169be9a55e0cfb98346aece1b51c016fa
> # good: [2a07870511829977d02609dac6450017b0419ea9] irqchip/mips-gic: Use gic_vpes instead of NR_CPUS
> git bisect good 2a07870511829977d02609dac6450017b0419ea9
> # good: [eaff0e7003cca6c2748b67ead2d4b1a8ad858fc7] locking/pvqspinlock: Move lock stealing count tracking code into pv_queued_spin_steal_lock()
> git bisect good eaff0e7003cca6c2748b67ead2d4b1a8ad858fc7
> # good: [013e379a3094ff2898f8d33cfbff1573d471ee14] tools/lib/lockdep: Fix link creation warning
> git bisect good 013e379a3094ff2898f8d33cfbff1573d471ee14
> # bad: [7eb8c99db26cc6499bfb1eba72dffc4730570752] MIPS: Delete smp-gic.c
> git bisect bad 7eb8c99db26cc6499bfb1eba72dffc4730570752
> # good: [fbde2d7d8290d8c642d591a471356abda2446874] MIPS: Add generic SMP IPI support
> git bisect good fbde2d7d8290d8c642d591a471356abda2446874
> # bad: [bb11cff327e54179c13446c4022ed4ed7d4871c7] MIPS: Make smp CMP, CPS and MT use the new generic IPI functions
> git bisect bad bb11cff327e54179c13446c4022ed4ed7d4871c7
> # first bad commit: [bb11cff327e54179c13446c4022ed4ed7d4871c7] MIPS: Make smp CMP, CPS and MT use the new generic IPI functions

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